Part 1 of 5 · freeIntroduction
In a wall socket, the current is a flow of electrons. In your body it works differently: ions, atoms that carry a charge, move in and out of the cells. That flow creates the signals that let you think, keep your heart beating, and make a muscle contract.
Without this living electricity there would be no thought, no movement, no pulse. Understanding the body also means understanding this language of charges.
The rest is in the Sophia app.The remaining parts, the open-book quiz and the full glossary. Free to start; Premium unlocks everything.
- 2The electric click of a neuron
- 3At the synapse, electricity turns into chemistry
- 4The heart has its own pacemaker
- 5From a lifted arm to the defibrillator
Open-book quiz9 questions whose answers are in the text.
Glossary12 terms explained in a tap.
30 languagesThe same course, from French to Japanese.
